(11b,17b)-11-(1,3-Benzodioxol-5-yl)-17-hydroxy-17-(1-propyn-1-yl)estra-4,9-dien-3-one CAS 189035-07-2
| CAS No. | 189035-07-2 |
| Molecular Formula | C28H30O4 |
| Molecular Weight | 430.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies (11b,17b)-11-(1,3-Benzodioxol-5-yl)-17-hydroxy-17-(1-propyn-1-yl)estra-4,9-dien-3-one (CAS 189035-07-2), a certified reference material (molecular formula C28H30O4, MW 430.54 g/mol) for analytical method development and quality control.
The molecular framework of (11b,17b)-11-(1,3-Benzodioxol-5-yl)-17-hydroxy-17-(1-propyn-1-yl)estra-4,9-dien-3-one (C28H30O4) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures (11b,17b)-11-(1,3-Benzodioxol-5-yl)-17-hydroxy-17-(1-propyn-1-yl)estra-4,9-dien-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H30O4 |
| Molecular Weight | 430.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
Recommended Standards
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